Shopping Cart on a separate sub-domain

I am hosting my own ERPNext site.

Is it possible for my ERPNext Shopping Cart to be on a different sub domain than the main site but still be a part of the same ERPNext site.

For example, if my site is I would want my shopping cart to be and serve the products and customers, etc. from

I think you can achieve this with multi-tenancy but I am not 100% sure